Chris was able to convert me from an American driver to a British driver; a non-trivial transformation. But we did this over several 2 hour lessons and I managed to pass my driving test the first time. Chris has high expectations for her drivers, but you eventually come to realise that her expectations are placed perfectly for making you a safe driver and one that will pass their test first time around. Her firmness but friendliness is a perfect combination for her role as a driving instructor, as you always know what is expected of you and what to expect from yourself. I would recommend Chris to the full range of learner drivers (young to mature); she is very methodical about ensuring you experience all the typical driving experiences in Oxford (which is where I was learning). I felt confident going into the exam that I shouldn't be surprised by anything that was asked of me--and I wasn't.
Now that she has taught me and my wife (both Americans) she is more aware of the language and cultural differences between being an American and British driver, so I would certainly recommend her to any Americans in the future as there are more differences to be aware of than you might think; my favourite being "pull up behind that car"...for which I had at least 4 different interpretations--I'll always laugh at the memory of how I reacted to that request on the exam--inside joke! Thanks very much Chris!!